HD200 Datasheet, PDF (2/10 Pages) Extech Instruments Corporation. – Differential Thermometer Datalogger

Introduction
Congratulations on your purchase of the Extech HD200 Differential Thermometer
Datalogger. The HD200 supports differential temperature measurements using dual
Type K thermocouple probe inputs and provides selectable units of °C, °F or °K. The
large backlit LCD displays a versatile combination of readings: T1, T2, T3, T1-T2, T1-T3,
T2-T3, plus MAX-MIN-AVG readings.
The electronic offset feature permits compensation adjustment for thermocouple errors
and to maximize overall accuracy.
The HD200 can also make non-contact temperature measurements with the supplied IR
thermometer probe.
The HD200 datalogger can store 18,000 measurement readings (for each channel) in
the meter’s internal memory. Stored readings can later be transferred to a PC using the
supplied PC USB interface kit. Real-time meter-to-PC logging is also supported.
This meter is shipped fully tested and calibrated and, with proper use, will provide years
of reliable service.
Safety
Please read the safety and operational instructions before using this device.
WARNING
To avoid electrical shock or instrument damage, do not apply voltage exceeding the
maximums specified.
WARNING
To avoid damage or burns, do not make temperature measurement in microwave ovens.
WARNING
Do not use the meter in any explosive atmosphere.
CAUTION
Repeated flexing can break the thermocouple leads. To prolong lead life, avoid sharp
bends in the leads, especially near the connector.
This symbol on the instrument indicates that the operator must refer to an
explanation in this manual.
Double insulation
IR Safety Notes
• Remove the battery if meter is to be stored for longer than 60 days.
• Use extreme caution when the laser pointer beam is on
• Do not point the beam toward anyone's eye or allow the beam to strike the eye from a
reflective surface
• Do not use the laser near explosive gases or in other
potentially explosive areas
2
Model HD200 Version 2.0 December 2007