OPERATION MANUAL
Model:
Model:8903/8904/8906
POCKET
PSYCHROMETER
87068716
8706N
Page 1: ...OPERATION MANUAL Model Model 8903 8904 8906 POCKET PSYCHROMETER 8706 8716 8706N ...
Page 2: ...ter or refer to the chart Easy to get Wet Bulb Dry Bulb and Dew Point temperature quickly Features 1 INTRODUCTION Triple LCD digital display T1 T2 T2 DP function Model 8716 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 8706 8716 Wet Bulb calc...
Page 3: ...e probe P N VZ87P6AZ Calibration salt bottles 33 and 75 P N VZ0033AZ1 VZ0075AZ1 Hard carry case P N VM68706B MATERIAL SUPPLIED WARNING IMPORTANT CLOSE OPEN External probe port BE SURE TO OPEN THE SENSOR PROTECTION CAP BEFORE STARTING THE MEASUREMENT IN ORDER TO GET ACCURATE VALUE FOR ALL MODELS This package contains ...
Page 4: ...he moment Display maximum value of memory from power on to the moment 1 Key Power on off o o 2 C F Key Switch between o display of C o and F 3 MODE key N A 4 HOLD Key Hold display HOLD Non Sleep mode The default setting is auto sleep in 5 min 3 CONTROLS AND INDICATORS Db Ex O C O F LCD DISPLAY RH Dry Bulb External Temperature Model 8706N ...
Page 5: ... Ex mode switch Press to display only while external probe is plugged 6 MN MX Key Display minimum value of memory from power on to the moment Display maximum value of memory from power on to the moment o o 2 C F Key Switch between o display of C o and F 3 MODE key Switch between display of Db DP Db Air Temp 4 HOLD Key Hold display HOLD Non Sleep mode The default setting is auto sleep in 5 min 4 ...
Page 6: ... Min Max memory Display minimum value of memory from power on to the moment Display maximum value of memory from power on to the moment Air Temp RH Dew Point T1 T2 Wet Bulb External Temperature T2 DP 4 HOLD Key Hold display ON OFF HOLD Non Sleep mode Non sleep time is selectable from 2 5 10 20 40 to 60 min The default setting is auto sleep in 10 min HOLD T DP T2 T1 WB ON OFF ON OFF o o C F RESET R...
Page 7: ...ing on the protective sensor cap in counterclockwise direction 2 Turn meter on by pressing 8706N 8706 or ON OFF 8716 button See Fig B 3 Press C F key more than 1 sec to convert reading to desired unit Both temperature and relative humidity measurement will display simultaneously See Fig C Fig B AUTO POWER OFF SLEEP FUNCTION MODE OPTIONS Db DP Wb Ex O C O F 8706 Fig C 8716 For 8716 the auto power o...
Page 8: ...mp Difference DATA HOLD FUNCTION 7 Wb O C Db 8706 Fig D PARTIAL HOLD FUNCTION FOR 8716 While in normal mode press HOLD only the T1 RH will be held Press HOLD again to release While in normal mode press HOLD only the T2 will be held Press HOLD again to release T2 WB T DP T1 Press MODE button until DP appears on display Select to display dew point or dry bulb air temp in any mode while the unit is o...
Page 9: ...ion Fig E Fig E1 Press button until DP appears on display Select to display dew point T1 air temp or delta T T1 T2 in any mode while the meter is on See Fig E1 8716 T DP T1 Wb O C DP Ex TEMPERATURE FUNCTION Plug the external probe into the meter Unit will now display external probe temperature See Fig F1 8706N Plug the external probe into the meter Short press RESET button until Ex appears on disp...
Page 10: ... T2 won t appear on display even pressing the RESET or key T2 WB MIN MAX FUNCTION 1 Press and hold MN MX 8706N 8706 or 8716 button until MIN appears on display See Fig G Display is now showing minimum humidity and temperature readings in memory 2 Press and hold MN MX 8706N 8706 or 8716 button again until MAX appears on display See Fig H Display is now showing maximum humidity and temperature readi...
Page 11: ... don t plug the probe into socket before turning the meter on the error code will also appear when you check MIN MAX value T 10 Fig G 8706 O C Ex DP 3 To return to current temperature and humidity readings press and hold MN MX or button until Min or Max disappear from display 4 Press RESET or button more than two seconds to clear current reading from memory RESET RESET MX MN MX MN RESET RESET MX M...
Page 12: ... T2 Fig K DP LOW BATTERY Battery symbol will appear on display at right top corner when the power is low Failure to replace batteries will have an effect on the accuracy of the readings O C Ex DP T2 WB 2 Press button until appears on display See Fig K 1 Open the battery cover on the rear side 2 Remove the expired batteries 3 Insert new 2pcs AAA batteries and make sure the batteries are in correct ...
Page 13: ...er 30 mins up to now the whole calibration is completed and the calibration data has been saved in memory RESET RESET MX MN MX MN Note a You can exit calibration procedure without saving by pressing ON OFF key before step 4 At step 4 pressing ON OFF key to exit calibration b Auto power off is disabled in calibration mode c To get high accuracy calibration should be operated at 23 degree C d If the...
Page 14: ...r ON OFF HOLD key to disable auto power off function Er 2 Circuit error in Internal temperature measurement channel return the meter to the store for repairing C Replace a new battery and try again D Remove the batteries for one min And then put back for second try No Display Er 3 Circuit error in reference resistor channel return the meter to the store for repairing Er 4 Internal temperature is o...
Page 15: ...ernal temp range o o 20 70 C 4 158 F Optional accessory External temp Probe VZ87P6 AZ Response time 60 seconds typical Pocket size 24 7 H x 48 4 W x178 5mm L Extension cable length Approx 1 2M with phone jack 2 5 mm Probe with handle 15cm approx Power 2 x 1 5V AAA battery o Accuracy RH 3 at 25 C o o Temperature 1 F 0 6 C b When the meter is on pluggin in an external probe might cause ER 5 error in...
Page 16: ...nd insured against possible damage or loss RETURN AUTHORIZATION Proof of purchase is required for warranty repairs Warranty is void if the meter has been opened The meter is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase This warranty covers normal operation and does not cover battery misuse abuse alteration tampering neglect improp...
Page 17: ...nemometer Sound Level Meter Air Flow meter Infrared Thermometer K type Thermometer K J T type Thermometer K J T R S E type Thermometer pH Meter Conductivity Meter T D S Meter D O Meter Saccharimeter Manometer Tacho Meter Lux Light Meter Moisture Meter Data logger Temp RH transmitter Wireless Transmitter 2006 03 1000R ...
