Extech 380340 Instruction Manual

User's Manual

Model 380340
Heavy Duty Datalogging Module

with Windows™ Software

• Stores data for later recall and analysis

• Can be used with any Extech Heavy Duty meter

• Selectable recording interval

• Battery powered and portable

• Heavy Duty meters are available for the

measurement of Temperature, Air Velocity and
Flow, Relative Humidity, Light Level, Wood
Moisture, pH, Conductivity, Dissolved Oxygen,
and Pressure

Introduction

Congratulations on your purchase of Extech’s 380340 Datalogging Module. This
professional device, with proper care, will provide years of safe reliable service. The
Datalogger connects to and records data from an Extech Heavy Duty Meter. The sample
rate at which data is recorded is user selectable. Readings stored in the Datalogger can
later be transferred to a PC using the supplied software and communication cables.

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Specifications

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Input type RS-232 data stream
Data storage 8000 readings (16 bit each)
Display 0.5" red 2 digit LED, 100 counts (0-99)
Adjustable Sample Rate Seconds: 1 to 99, Minutes: 1 to 99, Hours: 1 to 99
Internal Clock Crystal oscillator
Memory Volatility Data is retained at power down
Batteries Four 1.5V AA (alkaline or heavy duty type)
Battery life 36 hours continuous (typical)
Power consumption Approx. 20 to 54 mA DC
Operating temperature 32 to 122oF (0 to 50oC)
Operating humidity < 80 % RH
Weight 0.45 lbs. (205g) including battery
Dimensions 5.2x2.8x1.0" (131x70x26mm) (HxWxD)

Datalogger Description

1 Display
2 Memory ‘Full’ indicator
3 ‘Data’ indicator
4 ‘Pause’ indicator
5 ‘Power/Low Power’ indicator
6 ‘Auto/Manual/Out’ switch
7 Sample rate switch
8 Power ON/Off switch
9 Reset> / INC 10 button
10 Pause / INC 1 button
11 ‘Set’ button
12 ‘Data in’ port (meter to Datalogger)
13 ‘Data out’ port (Datalogger to PC)
14 Battery compartment (rear)

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Datalogging Operation

Note: The Heavy Duty Meters have an Auto-Shutoff feature that will automatically power off
the meter after a fixed time period. This feature should be disabled during a datalogging
session. Press the "RECORD" button on the meter to disable the Auto-Shutoff feature.

Automated Datalogging Preparation

This function permits the Datalogger to automatically collect readings at the sample rate
set by the user.

1. Connect the Datalogger's uP IN port to the Heavy Duty Meter as shown in the
illustration below. (The supplied dual 3.5mm cable links the Heavy Duty meter to
the Datalogger).

2. Turn the Datalogger OFF ("0" switch position).

3. Slide the Auto/Man/Out switch to the Auto position.

4. Slide the Time switch to the "S" (seconds), "M"
(minutes) or "H" (hours) position depending on the
data sampling (recording) rate desired (1-99 seconds,
1-99 minutes, or 1-99 hours).

5. If this is the first time the datalogger is being used,
reset (erase) the datalogger's memory per the Reset
Function section below .

6. Power the datalogger ("1" position).

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