# Reference thermometer — CTP5000

> Reference thermometer for accurate temperature measurement and calibration in laboratories and industrial applications.

- Catalog code: ctp5000
- Model: CTP5000
- Category: Calibration technology › Reference thermometers
- Product page: https://avigan.com.ua/wika/en/products/ctp5000
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

The Mensor CTP5000 reference thermometer provides a full range platinum resistance thermometers (PRTs) for use in every application.

## Applications

- Reference thermometer for measuring very accurate temperature in a range of -196 ... +660 °C [-321 ... +1,220 °F]
- Reference thermometer and a precision instrument for testing, adjusting and calibrating temperature measuring instruments in factories and calibration laboratories
- Comparative calibration in dry well calibrators, tube furnaces and liquid baths

## Special features

- Temperature range: -196 ... +660 °C [-321 ... +1,220 °F]
- High stability
- Low drift, long service life
- Bare wires, DIN connector or SMART plug

## Specifications

| Parameter | Value |
|---|---|
| model | CTP5000 |
| product family | CTP |
| short description | Reference thermometer for accurate temperature measurement and calibration in laboratories and industrial applications. |
| subcategory | Reference thermometer |
| certifications | DKD; DAkkS; UKAS |
| languages in datasheet | en |
| calibration type | temperature_bath |
| temperature ranges | -196 … 660 °C |
| accuracy or uncertainty | ±1 mK reproducibility, annual drift ±1 mK (model CTP5000-T25) |
| traceability | DKD; DAkkS; UKAS |
| output signal | resistance |

## Datasheet tables

| Specifications | Model CTP5000-200 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -50 …+200 °C [-58 ...+392 °F] |
| Resistance at 0 °C [32 °F] | 100Ω |
| Temperature coefficient | 0.00385 |
| R(Ga)/R(TPW) | Ratio less than 1.11807 |
| Annual drift 2) | ±10 ...±20mK |
| Recommended measurement current | 0.5 mAor1mA |
| Self heating error in water at 0 °C [32 °F] | 2 ...5mK |
| Sheath material | Stainless steel |
| Dimensions |  |
| Probe diameter | d = 3 mm[0.12 in] |
| Probe length | l = 30 mm[1.18 in], fully immersible |
| Cable |  |
| Length | 3 m[9.84 ft] |
| Connection | Bare wire, DIN plug or SMART connector |

| Specifications | Model CTP5000-250 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -50 …+250 °C [-58 ...+482 °F] |
| Resistance at 0 °C [32 °F] | 100Ω |
| Temperature coefficient | 0.00385 |
| R(Ga)/R(TPW) | Ratio less than 1.11807 |
| Annual drift 2) | ±10 ...±20mK |
| Typical stability | ±5mK |
| Recommended measurement current | 0.5 mAor1mA |
| Self heating error in water at 0 °C [32 °F] | typically 2 ... 5 mKat1mA |
| Sheath material | Stainless steel |
| Dimensions |  |
| Probe diameter | d = 6 mm[0.24 in] |
| Probe length | l = 450 mm(immersion depth max. 400 mm, min. 100 mm) l = 17.72 in (immersion depth max. 15.75 in, min. 3.94 in) |
| Cable |  |
| Length | 2 m[6.56 ft] |
| Connection | Bare wire, DIN plug or SMART connector |

| Specifications | Model CTP5000-450 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -80 …+450 °C [-112 ...+842 °F] |
| Resistance at 0 °C [32 °F] | 100Ω |
| Temperature coefficient | 0.00385 |
| R(Ga)/R(TPW) | Ratio less than 1.11807 |
| Annual drift 2) | ±20 ...±30mK |
| Typical stability | ±5mK |
| Recommended measurement current | 0.5 mAor1mA |
| Self heating error in water at 0 °C [32 °F] | typically 5 ... 10 mKat1mA |
| Sheath material | Stainless steel |
| Dimensions |  |
| Probe diameter | d = 6 mm[0.24 in] |
| Probe length | l = 450 mm(immersion depth max. 400 mm, min. 100 mm) l = 17.72 in (immersion depth max. 15.75 in, min. 3.94 in) |
| Cable |  |
| Length | 2 m[6.56 ft] |
| Connection | Bare wire, DIN plug or SMART connector |

| Specifications | Model CTP5000-651 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -189 …+650 °C [-308 ... +1,202 °F] |
| Resistance at 0 °C [32 °F] | 100Ω |
| Temperature coefficient | 0.003925 |
| R(Ga)/R(TPW) | Ratio not less than 1.11807 |
| Annual drift 2) | ±10mK |
| Typical stability | ±5mK |
| Recommended measurement current | 0.5 mAor1mA |
| Self heating error in water at 0 °C [32 °F] | typically 13 mKat 1 mAor 3 mKat 0.5mA |
| Sheath material | Fused silica |
| Dimensions |  |
| Probe diameter | d = 7.5 mm[0.30 in] |
| Probe length | l = 450 mm(immersion depth max. 350 mm, min. 200 mm) l = 17.72 in (immersion depth max. 13.78 in, min. 7.87 in) |
| Cable |  |
| Length | 2 m[6.56 ft] |
| Connection | Bare wire, DIN plug or SMART connector |

| Specifications | Model CTP5000-652 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -80 …+650 °C [-112 ... +1,202 °F] |
| Resistance at 0 °C [32 °F] | 100Ω |
| Temperature coefficient | 0.00385 |
| R(Ga)/R(TPW) | Ratio less than 1.11807 |
| Annual drift 2) | ±15mK |
| Typical stability | ±5mK |
| Recommended measurement current | 1mA |
| Self heating error in water at 0 °C [32 °F] | 10 ... 15 mKat1mA |
| Sheath material | Metal alloy |
| Dimensions |  |
| Probe diameter | d = 6 mm[0.24 in] |
| Probe length | l = 450 mm(immersion depth max. 400 mm, min. 300 mm) l = 17.72 in (immersion depth max. 15.75 in, min. 11.81 in) |
| Cable |  |
| Length | 2 m[6.56 ft] |
| Connection | Bare wire, DIN plug or SMART connector |

| Specifications | Model CTP5000-T25 |
|---|---|
| Specific probe data 1) |  |
| Temperature range | -200 ...+670 °C [-328 ... +1.238 °F] |
| Resistance at 0 °C [32 °F] | 25 ±0.5Ω |
| Calibration | Suitable for calibration per ITS-90 up to a maximum temperature of 660.323 °C [1,220.581 °F] (freezing point aluminium) |
| R(Ga)/R(TPW) | Ratio not less than 1.11807 |
| R(Me)/R(TPW) | Ratio not greater than 0.844235 |
| Reproducibility | ±1mK |
| Annual drift 2) | ±1 mK, depending on use |
| Typical stability | ±1mK |
| Recommended measurement current | 1mA |
| Gas filling | Dry argon / oxygen mixture |
| Sheath material | Fused quartz |
| Dimensions |  |
| Sheath | d = 7.5 mm[0.30 in] l = 480 mm(immersion depth max. 400 mm, min. 300 mm) l = 18.90 in (immersion depth max. 15.75 in, min. 11.81 in) |
| Head | l = 90 mm[3.54 in] |
| Cable |  |
| Length | 2,5 m[8,20 ft] with low thermal EMF;for high temperatures |
| Connection | gold-plated copper spade lugs |

| Logo | Description | Country |
|---|---|---|
| - | MTSCHS Permission for commissioning | Kazakhstan |

### Certificate

| Calibration | ■ without ■ 3.1 calibration certificate per DIN EN 10204 ■ DKD/DAkkS/UKAS calibration certificate |
|---|---|
| Recommended recalibration interval | 1 year (dependent on conditions of use) |

| Model | Dimensions | Temperature range | Detector length |
|---|---|---|---|
| CTP5000-250 | Pt100, d = 6 mm, l = 450mm Pt100, d = 0.24 in, l = 17.72 in | -50 ...+250 °C [-58 ...+482 °F] | 25mm [0.98 in] |
| CTP5000-450 | Pt100, d = 6 mm, l = 450mm Pt100, d = 0.24 in, l = 17.72 in | -80 ...+450 °C [-112 ...+842 °F] | 25mm [0.98 in] |
| CTP5000-652 | Pt100, d = 6 mm, l = 450 mm(without spring strain relief, 100 mmhandle) Pt100, d = 0.24 in, l = 17.72 in (without spring strain relief, 3.94 in handle) | -80 ...+650 °C [-112 ... +1,202 °F] | 30mm [1.18 in] |
| CTP5000-651 | Pt100, d = 7.5 mm, l = 450 mm(125 mmhandle) Pt100, d = 0.30 in, l = 17.72 in (4.92 in handle) | -189 ...+650 °C [-308 ... +1,202 °F] | 50mm [1.97 in] |

| Model | Dimensions | Temperature range | Detector length |
|---|---|---|---|
| CTP5000-200 | Pt100, d = 3 mm, l=30mm Pt100, d = 0.12 in, l = 1.18 in | -50 ...+200 °C [-58 ...+392 °F] | 6mm [0.24 in] |

| 1 | 2 | Order code |
|---|---|---|
| Description |  | CTX-A-R2 |
| SMART DIN plug 5 pin |  | -G- |
| DIN plug 5 pin |  | -C- |
| Ordering information for your enquiry: |  |  |
|  | 1. Order code: CTX-A-R2 | ⇓ |
|  | 2. Option: | [ ] |

### Basic information

| Temperature range | -200 …+670 °C [-328 ... +1,238 °F] |
|---|---|
| Max. temperature |  |
| Handle | Max. 80 °C [176 °F] |
| Cable | Max. 80 °C [176 °F] |
| Type of measuring element | Pt25 |
| Resistance at 0 °C [32 °F] | 25 ±0.5Ω |
| Connection method | 4-wire connection |
| Material | Platinum resistance |
| Calibration | Suitable for calibration per ITS-90 up to a maximum temperature of 660.323 °C [1,220.581 °F] (freezing point aluminium) |
| Probe |  |
| Gas filling | Dry argon / oxygen mixture |
| Sheath material | Fused quartz |
| Case |  |
| Dimensions | 680 x 170 x 70 mm[26.77 x 6.69 x 2.76 in] |
| Weight | 2.4 kg [5.29 lb.] (including thermometer) |

### Accuracy specifications 1)

| Tolerance class per EN 60751 | Class A |
|---|---|
| Temperature coefficient | α = 0.003926 |
| R(Ga)/R(TPW) | Ratio not less than 1.11807 |
| Reproducibility | ±1mK |
| Basic accuracy | ±1mK |
| Annual drift 2) | ±5mK |
| Typical stability | ±1mK |
| Recommended measurement current | 1mA |
| Self heating error in water at 0 °C [32 °F] | ±2 ...±3 mKwith 1mA in un-stirred water |
| Reference conditions |  |
| Ambient temperature | 23 ±2 °C [73 ±2 °F] |
| Humidity | 40 %r.F.±25 %r.h. |

### Electrical connection

| Connection type | ■ Flying leads ■ 5-pin Din connector ■ SMART plug ■ Banana plugs ■ Gold-plated copper spade lugs |
|---|---|
| Cable |  |
| Length | 2.5 m[8.20 ft] with low thermal EMF For high temperatures |
| Material | PTFE sheath |

| Description | 2 |
|---|---|
| Certificates | ■ Without ■ Acceptance test certificate 3.1 with Wvalue verification ■ Acceptance test certificate 3.1 in accordance with DIN EN 10204 (factory calibration) ■ Acceptance test certificate 3.1 in conjunction with a readout instrument (6 test points) ■ Report for ITS-90 suitability |
| Calibration | ■ Without ■ DAkkS/UKAS calibration certificate (traceable and accredited in according with ISO/IEC 17025) ■ DAkkS/UKAS calibration certificate (traceable and accredited in according with ISO/IEC 17025 with a readout instrument (6 test points) |
| Test points for calibration certificate | ■ Without ■ -40 °C, -20 °C, 0 °C, +50 °C, +70 °C and +100 °C ■ Fixed point TPWater, MPGallium ■ Fixed pointTP Argon,TP Mercury, TPWater ■ Fixed pointTP Mercury, TPWater, MPGallium ■ Fixed pointTP Argon,TP Mercury, TPWater, FP Indium ■ Fixed pointTP Argon,TP Mercury, TPWater, FP Indium, FPTin ■ Fixed pointTP Argon,TP Mercury, TPWater, FPTin, FP Zinc ■ Fixed pointTP Argon,TP Mercury, TPWater, FPTin, FP Zinc, FP Aluminum ■ Fixed point low temperature:TP Mercury, TPWater, MPGallium, FP Indium and comparison measurement -196 °C / -80 °C ■ Fixed point medium temperature:TP Mercury, TPWater, MPGallium, FP Indium, FPTin, FP Zinc ■ Fixed point high temperature:TP Water, MPGallium, FP Indium, FPTin, FP Zinc, FP Aluminum ■ Customized calibration points |
| Recommended calibration interval | 1 year (dependent on conditions of use) |

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|
| Fixed point | Temperature | Uncertainty in ±mK |  |  |  |  |  |  |
| °C | [°F] | Range 1 | Range 2 | Range 3 | Range 4 | Range 5 | Range 6 |  |
| TP argon | -189.3442 | [-308.8196] | 0.5 | - | 0.5 | 0.5 | 0.5 | 0.5 |
| TP mercury | -38.8344 | [-37.9019] | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| TP water | 0.01 | [32.02] | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| MP gallium | 29.7646 | [85.5763] | - | 0.2 | - | - | - | - |
| FP indium | 156.5985 | [313.8773] | - | - | 1 | 1 | - | - |
| FP tin | 231.928 | [449.470] | - | - | - | 1 | 1 | 1 |
| FP zinc | 419.527 | [787.149] | - | - | - | - | 1.2 | 1.2 |
| FP aluminium | 660.323 | [1,220.581] | - | - | - | - | - | 2 |

### Dimensions

| Probe tube length | l = 480 mm[18.90 in] Ø=7.5 mm[0.30 in] |
|---|---|
| Head / Handle | l = 90 mm[3.54 in] Ø=23mm[0.91 in] |
| Immersion depth | Min. 300 mm[11.81 in] Max. 400 mm[15.75 in] |
| Active sensor length | 35 mm[1.37 in] |

| Description | Order code |
|---|---|
| SMART DIN plug 5 pin | -G- |
| DIN plug 5 pin | -C- |
| Ordering information for your enquiry: | ⇓ |
|  | [ ] |

## Documents

- [ds_ct6120_en_co_6fd0e5](https://avigan.com.ua/wika/docs/wika/ds_ct6120_en_co.pdf) — PDF, 278 KB, en
- [ds_ct6125_en_co_e93117](https://avigan.com.ua/wika/docs/wika/ds_ct6125_en_co.pdf) — PDF, 307 KB, en