Time Electronics

1090 Portable Process Calibrator

Time Electronics Ltd, Unit 5, TON Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom

T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com

Description

The 1090 is a high performance portable process calibrator that combines

source and measurement functions for thermocouples, Pt100s, μV, mV,

and 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 ± 30 mV and 0 to ± 60 mA.

Source ranges are 0 to ± 80 mV and 0 to 80 mA.

Temperature units selection

The display can be easily changed from °C to °F. The equivalent μV

(thermocouples) and ohms (PT100) can also be shown.

24 V Process loop drive mode

A process loop can be driven at 24 V and up to 60 mA by selecting the

‘Milliamp Source’ mode and setting it at 60 mA (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 μV/ μA 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.

Features

• Measure and simulate 8 thermocouples

• Measure and simulate Pt100-RTD

• Measure and source μV/mV/mA

• Displays units in °C, °F, μV/mV, or mA

• Automatic or manual cold junction compensation

• 10 point memory recall

• Process loops 4 to 20 mA and 0 to 50 mA

• 24 V loop drive voltage

• Mains or battery operation

• 60 hours typical use between charges

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 and 10 seconds/step.

Power is via an internal high capacity rechargeable metal hydride battery

that can be recharged from an external mains charger (supplied as

standard). An auto power-down feature helps conserve battery lifeby

switching off the instrument if inactive for over 5 minutes. This 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.