ETI Precision, Reference, Precision Plus, Reference Plus - Thermometer Manual

INSTRUMENT OPERATION

Connect a probe via the socket located on the top of the instrument (where applicable). Screw the collar of the plug, finger-tight to ensure a secure connection (do not over tighten). The instrument is switched on by pressing the ON/OFF button. Apply the tip of the probe to the substance, medium or surface to be measured. The instrument reading may take a few seconds to stabilise, depending on the nature of the measurement and sensitivity of the probe.

HOLD

Press the HOLD button to freeze the display. Press again to continue measuring.

MAX/MIN

Press the MAX/MIN button to display the values. The instrument retains the max/min values when switched off. To reset, press the MAX/MIN button for three seconds, 'rst' will be displayed.

AUTO-OFF

The unit will switch off automatically after 10 minutes. To disable auto off press the HOLD button whilst switching on the instrument (this is reset when the instrument is switched off).

TRIM - PRECISION, PRECISION PLUS & REFERENCE PLUS ONLY

Press the MAX/MIN and ON/OFF buttons at start-up for five seconds to enter (Offset is displayed). Press HOLD (up) or MAX/MIN (down) to set the trim value (maximum of ±2.00°C). Press the ON/OFF button to save the value and exit Trim mode.

OPEN CIRCUIT/FAULTY PROBE

If the probe has developed an 'Open Circuit' fault the instrument will display 'Err'.

SENSORS

This instrument should only be used with PT100 (platinum resistance probes, 0°C = 100 Ω) BS EN 60751 fitted with suitable miniature plug (where applicable).

BATTERY REPLACEMENT

The instrument will display 'LO BAT' to warn that the batteries will need changing soon. The instrument continues to measure accurately but after further usage the instrument will display 'flat bat' and shutdown. Replace the batteries with three AAA batteries located under the rear cover that is held in place by a single screw.

IPA and other solvents may cause damage to the case and screen of this instrument.