1090 Portable Process Calibrator
Features
- Measure/simulate thermocouples
- Measure/simulate PT100
- Measure/source (µV/mV/mA)
- Display in °C and °F
- Automatic CJC - selectable
- 10 point memory recall
- Process loops 4-20mA/0-50mA
The 1090 is a precision portable process calibrator that combines source and measurement functions for thermocouples, PT100s, µV, mV & mA.
As a multifunction instrument the 1090 combines accuracy and durability with simple operation, making it ideal for process plant applications.
Thermocouple Measurement and Simulation
Measure and simulate the temperature and mV characteristics of J, K, T, R, S, B, N and E thermocouples.
Cold Junction Compensation
The unit can be operated with or without internal cold junction compensation.
PT100 Measurement and Simulation
Based on 0.3850 alpha probe standard. Range is -200°C to 700°C.
Measurement and Source (µV, mV, and mA)
Measurement ranges are 0 to +/-30mV and 0 to +/-60mA. Source ranges are 0 to +/-80mV and 0 to +80mA.
Temperature Units Selection
The display can be easily changed from °C to °F. The equivalent uV (thermocouples) and ohms (PT100) can also be shown.
24V Process Loop Drive Mode
A process loop can be driven at 24V and up to 60mA by selecting the ‘Milliamp Source’ mode and setting it at 60mA (or a lower level if required).
Inching (Incrementing/Decrementing)
The unit has a general-purpose inching function. This adjusts the output in fixed increments of temperature (thermocouples only) or voltage or current. The set-up menu gives a the user a choice of three levels of increment i.e. 0.1, 1 or 10 for °C/°F, or 1, 10, or 100 uV/uA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output. This is especially useful for calibrating thermostat controllers that have tight specification on hysteresis.
Memory Recall and Step/Auto-Step Functions
Up to 10 values can be stored in the unit’s non-volatile memory and they can be recalled at any time. The user can also manually step through them in sequence using the step key. Continuous stepping (auto-step) is also available at any user selectable rate between 1 & 10 seconds/step.
Power is via an internal high capacity rechargeable metal hydride battery that can be recharged from the supplied external mains charger. An auto power-down feature helps conserve battery life by switching off the instrument if inactive for over 5 minutes. This feature can be disabled if not required. The unit is supplied in a robust case with a carrying strap. A pocket for the instruction manual is provided.
Technical Specifications
| temperature measure |
|---|
| Thermocouple Type | Temperature Range (°C) | Accuracy (°C) |
|---|---|---|
| J | -200 to 580 | 0.7 |
K | -200 to -150 | 2.5 |
T | -200 to 0 | 1.5 |
R | 50 to 400 | 3.0 |
S | -50 to 100 | 3.0 |
B | 110 to 1000 | 3.5 |
| N | -100 to 890 | 0.6 |
| E | -50 to 400 | 0.4 |
Resolution | 0.1°C or 0.1°F |
| Temperature Simulation |
|---|
| Thermocouple Type | Temperature Range (°C) | Accuracy (°C) |
|---|---|---|
J | -210 to 150 | 0.15 |
K | -270 to 190 | 0.5 |
T | -200 to 150 | 0.4 |
R | -50 to 800 | 0.8 |
S | -50 to 850 | 0.9 |
B | 100 to 1200 | 2.0 |
N | -270 to 260 | 0.5 |
| E | -50 to 1000 | 0.3 |
Resolution | 0.1°C or 0.1°F |
Note: An additional correction representing the equivalent 1μV should be allowed for stray thermal emf effects (Temperature measure & simulation).
| PT100 Simulation |
|---|
| 14 set temperature points (°C) | Accuracy |
|---|---|
| -100, -50, -20, 0, 20, 50, 100, 200, 300, 400, 500, 600, 700, 800 | 0.1% of resistance value (typically 0.5 °C) |
| PT100 Measure |
|---|
| Range | Accuracy | Resolution |
|---|---|---|
| 200 to 700 °C, 2 wire. | 0.2% of resistance value (typically 0.7 °C) | 0.2°C (or 0.2°F) |
| Millivolt Measure |
|---|
| Range | Resolution | Accuracy | Input Resistance |
|---|---|---|---|
0 to +/- 30mV | 10μV | 0.05% of full scale ±1 digit | 100kΩ |
| Millivolt Source |
|---|
| Range | Resolution | Accuracy | Output Resistance |
|---|---|---|---|
| 0 to 8mV | 0.5μV | +/- 4μV | 10Ω |
| 8 to 80mV | 5μV | 0.02% of full scale | 10Ω |
| Milliamp Measure |
|---|
| Range | Resolution | Accuracy | Input Resistance |
|---|---|---|---|
0 to 60mA | 20μA | 0.05% of full scale ±1 digit | 0.5Ω |
| Milliamp Source |
|---|
| Range | Resolution | Accuracy |
|---|---|---|
| 0 to 8mA | 0.5μA | +/-10μA |
8 to 80mA | 5μA | 0.02% of full scale |
| Further Features and Functions |
|---|
| Inching | Three levels of increment, 0.1, 1 or 10 for °C/°F, and 1, 10, or 100 μV/ μA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output. |
24V Process Loop Drive |
A process loop can be driven at 24V and up to 60mA by selecting the ‘Milliamp Source’ mode and setting it at 60mA |
Memory recall & step |
10 memory locations for non-volatile storage of values. Manual & AutoStep, rate adjustable from 1 to 10 sec/step |
General Specifications
| Cold Junction Compensation | Accuracy 0.2°C. Resolution 0.1°C. |
| Operating Temperature | -10 to 40°C (15 to 105°F) |
| Connections | Industry standard 4mm screw terminals |
| Power | A Ni-MH rechargeable battery pack gives approx. 60 hours continuous use. The mains recharger supplied gives full recharge in 11 hours. To conserve battery life a user inactivity power-down feature is included. |
| Dimensions | H235 x W150 x D75mm |
| Weight | 1.2kg |
| Supplied With | Carry case, rechargeable battery pack (installed) with mains charger, and user manual |
| Optional Extras | Calibration certificates traceable NPL and UKAS |
| Country of Origin | UK |
| Models |
|---|
1090 |
Portable Process Calibrator |
| Options |
|---|
C177 |
Factory Calibration Certificate (NPL traceable) |
C139 |
UKAS Calibration Certificate (ISO 17025) |
| PDF Downloads |
|---|
| File Name | File Size | Language |
|---|---|---|
184kB | EN | |
302kB | EN |