DWYER INSTRUMENTS, INC.
Phone: 219/879-8000
www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A.
Fax: 219/872-9057
e-mail: info@dwyer-inst.com
Function:
Press the “MODE” key for scrolling to display more functions as fol-
lows.
E:
Will show the emissivity data.
MAX, MIN DIF, AVG:
Press “MODE” key for the Maximum (MAX),
Difference between MAX and MIN (DIF) and Average (AVG) modes.
During the measurement, the special modes reading will be dis-
played beside the mode icon.
HAL, LAL:
Press “UP” key or “DOWN” key to change the High
Alarm (HAL) or Lo Alarm (LAL) then press “MEAS” key to confirm
it.
PRB:
Connect the thermocouple to the thermocouple socket and
put the probe in/on the target to be measured, the thermometer
will display the temperature automatically without pressing any
button. To see the minimum or maximum data during the probe
measurement, please hold down the “UP” key or “DOWN” key.
After measuring high temperatures the probe may remain HOT for
a while.
LED Error Messages
The thermometer incorporates visual diagnostic messages as fol-
lows.
“HI/LOW”:
“Hi” or “Lo” is displayed when the temperature being
measured is outside of the settings of HAL and LAL.
“Er2”:
Displays when the thermometer is exposed to rapid
changes in the ambient temperature.
“Er3”:
Displays when the ambient temperature exceeds 32°F
(0°C) or 122°F (50°C). The thermometer should be allowed plen-
ty of time (minimum 30 minutes) to stabilized to the working/room
temperature.
For all other error messages it is necessary to reset the ther-
mometer. To reset it, turn the instrument off, remove the battery
and wait for a minimum of one minute, reinsert the battery and turn
it on. If the error message remains please contact the Dwyer
Customer Service department for further assistance.
Batteries:
The thermometer incorporates visual low battery indication as fol-
lows.
Battery OK:
Measurements are possible.
Battery Low:
Battery needs to be replaced, measurements are
still possible.
Battery Exhausted:
measurements are not possible. When the
low battery icon indicates the battery is low, the batteries should
be replaced immediately with AAA, 1.5V batteries.
Please Note:
It is important to turn the thermometer off before
replacing the battery otherwise the thermometer may malfunction.
Dispose of used battery promptly and keep away from children.
CAUTION
1. When device is in use, do not look directly into the laser
beam - Permanent eye damage may result.
2. Use extreme caution when operating the laser.
3. Never point the device towards anyone’s eyes.
4. Keep out of reach of all children.
EMC/RFI
Readings may be affected if the unit is operated within radio fre-
quency electromagnetic field strength of approximately 3 volts per
meter, but the performance of the instrument will not be perma-
nently affected. **Note: under the electromagnetic field of 3V/m
from 350 to 550 MHz, the maximum error is 14.4˚F (8˚C).
MAINTENANCE
A periodic check of the system calibration is recommended. The
Series IR4 is not field serviceable and should be returned if repair
is needed (field repair should not be attempted and may void war-
ranty). Be sure to include a brief description of the problem plus
any relevant application notes. Contact customer service to
receive a return goods authorization number before shipping.
Storage and Cleaning
The sensor lens is the most delicate part of the thermometer. The
lens should be kept clean at all times, care should be taken when
cleaning the lens using only a soft cloth or cotton swab with water
or medical alcohol. Allowing the lens to fully dry before using the
thermometer. Do not submerge any part of the thermometer. The
thermometer should be stored at room temperature between -4
and 149ºF (-20 to 65ºC).
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©Copyright 2007 Dwyer Instruments, Inc.
Printed in U.S.A. 6/07
FR# R5-443521-00
IR4 6/1/07 9:04 AM Page 2
