General tools CM880, LAM880D, SAM880DW, 8703, 8701 Operation Manual

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

INTRODUCTION

Congratulations on your purchase of
the Hygro-Thermometer ! This unique
instrument is portable, battery operated
in Temperature./Relative Humidity/Dew
Point / Wet Bulb temperature in a
compact measuring device. There are
3 models available for selection.

The Hygrometer is ideal for HVAC/R
technicians measuring Temperature ,
Humidity, Though you might have seen
Dew Point or Wet Bulb .. these are not
available for model 8701, and Wet bulb
function is only available for model

8705. Please contact the store or the
place you purchased .

Features :

Dual LCD digital display .
Data Hold to capture readings.
Pocket size , easy to fit in pocket.
Low battery indication.
Fast response .
Accurate reading .
Maximum record function .
Minimum record function.
Dew Point calculated in seconds.

(model 8703,8705 only)
Wet bulb calculated in seconds.
(model 8705 only) Calculate WB, no
water , twirling or conversion chart /
reading chart needed.

Microprocessor circuitry for reliability.

Model

Temp/RH

Dew Point V

Wet Bulb

8701

V V V

1

8703

8705

V
V

CONTROLS AND INDICATORS

HLD
MIN

%

MAX

td
WB

Primary Data Screen displays

1.

pressure value.

2. "-" .Minus pressure display.

3. MAX Maximum recorded.

4. MIN Minimum recorded.

5. HLD Hold current reading.

6. td Dew Point measurement.

7 Wet Bulb temperature

. WB

measurement .

8

. C Celsuis unit

9. F Farenheit unit

10.

% Relative humidity unit

8701 without

td/WBT key
8703 td/WBT
key without
printing WBT.

C
F

2

AUTO POWER OFF (SLEEP
FUNCTION)

Unit will turn itself off after 20 minutes
(Sleep mode) To override Auto Power
Off function (Non-Sleep Mode) press
ON/OFF and MIN/MAX button simul­taneously. After the full display appears
release ON/OFF button first,the display
will show " n " in left side. When " n "
appears (See Fig.A) then release MIN/
MAX button. Unit will now be in Non­Sleep Mode.

Fig. A

MODE OPTIONS

(1) Remove protective sensor cover.
(2) Turn meter on by pressing ON/OFF
button.(See Fig.B)
(3) Press C/F key to convert reading
to desired range. Both temperature
and relative humidity measurement
will display simultaneously.(See
Fig.C)

Fig. B

Fig. C

%

C

%

F

3