Zico ZI-7840 Instruction Manual

Introduction

This device measures relative humidity, air temperature (with probe), plus "K" type thermocouple wide
temperature measurements. The large, easy-to-read backlit LCD includes primary and secondary displays plus
numerous status indicators. Careful use of this meter will provide years of reliable service.

Features


Semiconductor sensor for temperature measurements of 0 ℃ to 40 ℃ and 32 ℉ ~104 ℉ plus type-K
thermocouple wide temperature measurements of –20.0℃ to 1000℃ and –4.0℉~1832℉

Humidity measurement from 0.1%RH to 100.0%RH with 0.1%RH resolution and fast time response. (The
measuring range is from 0% to 100%, but above 98% and below 5% the deviation is not specified.)

Fast response for Humidity measurement

Data Hold and MAX Hold function

Large dual digital LCD display with function indication

Specifications

Function
Humidity
Temperature
(K-type) (probe accuracy not
included)
Display: Dual LCD with Backlight and status Indicators
Sensor Type: ①Humidity: Precision capacitance sensor
②Temperature: Thermistor (probe) and type "K" thermocouple
Response Time: Probe Temperature and Relative Humidity: 3 minutes
Accuracy note: Accuracy is specified for the following ambient temperature range:
64 to 82°F (18 to 28°C)
Sampling Rate : 2.5 samples per second
Operating Conditions:
Storage Conditions: 14 to 140
Power Supply: 9V Battery with auto power off (after 10 minutes)
Dimensions / Weight: 5.9 x 2.8 x 1.4" (150 x 72 x 35mm); (210g)
INSTRUCTION MANUAL
Hygro -Thermometer
Range and Resolution
5.0 to 98.0% RH
o
-20.0 to 199.9 C
o
-20 to 1000 C
o
-4.0 to 199.9 F
o
-4 to 1832 F
o o
32 to 122 F (0 to 50 C); < 80% RH non-condensing
o o
F (-10 to 60 C); <80% RH non-condensing
www.zicotech.com
ZI-7840
Accuracy
± 3.5% RH
(3.0% reading + 4
o
C)
(3.0% reading + 7
o
F)