AccuMac AM8040 User manual

AM8040 Precision Thermometer
User’s Guide

AM8040 Precision Thermometer User’s Guide
Page 1
Table of Contents
Important Notice ---- Warning ..........................................................3
1. Introduction ..................................................................................4
1.1. Main Application.......................................................................4
1.2. Main Features............................................................................4
2. Main Specification........................................................................6
2.1. Main Specifications...................................................................6
2.2. Sensor Types..............................................................................6
3. User Interface ...............................................................................7
4. General Operations.......................................................................8
4.1. Connecting the probe/sensor.....................................................8
4.2. Instrument connection with AC power .....................................8
4.3. Instrument front panel display and touchpad............................9
5. Instrument Calibration and Accuracy Adjustments...................11
5.1. 100 Ω calibration .....................................................................12
5.2. 25 Ω calibration .......................................................................14
6. Selection of Sensors and Adjustment of Parameters .................18
7. Wireless Data Acquisition..........................................................24
8. Using a Flash Drive（U disk）for Data Acquisition................30
9. Using the USB Interface for Data Acquisition ..........................34
10. Appendix: Installation of USB Driver ....................................37
11. Limited Warranty & Limitation of Liability...........................41

AM8040 Precision Thermometer User’s Guide
Page 2
Please read the “ Important Notice”
information in the next page before
turning on the power of this instrument!

AM8040 Precision Thermometer User’s Guide
Page 3
Important Notice ---- Warning
Check the position of “Measurement/Calibration Switch”on
the rear panel. Please refer to Figure 2. The switch must be
at measurement (left) position. Loss of calibration data will
occur if the switch is at the calibration (CAL) position when
the instrument is used in measurement application.
The instrument is calibrated before shipment. Only qualified
calibration professionals with proper standard resistors
should perform the calibrations of this device. Please refer to
4. General Operations
AM8040 is a high accuracy digital thermometer working with a four-
wire platinum resistance thermometer (PRT) sensor.
The details of AM8040 operations are shown as follows:
2.1. Connecting the probe/sensor
Four-wire sensor should be connected to the “Sensor” terminals
at the rear panel. Figure 3 shows how the four wire sensor
should be connected.
It should be noted that the “Measurement/Calibration” switch
should be at “Measurement” position.

AM8040 Precision Thermometer User’s Guide
Page 4
Measurement/Calibration Switch
Figure 3: Rear Panel and Sensor Terminals
2.2. Instrument connection with AC power
AM8040 must work with power of AC100V~240V.
2.3. Instrument front panel display and touchpad
After power is on and a sensor is connected, AM8040 shows
some initialization information, and then display information
including the instrument’s interface status, measured
temperature in Celsius degree, the sensor resistance and
temperature in Fahrenheit degree. These are shown in 4 lines as
following figure.
Udr ZB-xx USB
+130.734
t= IPRT
C
Rt= 150.1074
ohm
t= +267.321
F
Line 1
Line 2
Line 3
Line 4
There is a status sign which blinks at the upper left corner of the
LCD display functioning as a status indicator. The status sign
blinks when the device is powered on.

AM8040 Precision Thermometer User’s Guide
Page 5
Line1 is the instrument’s interface status, including USB flash
drive, wireless communication status and USB to computer
interface status. If “Udr”is displayed, it means that a flash flash
drive is connected to the Host USB interface; if “ZB-xx”is
displayed, where “xx” are numbers, it means Zigbee wireless
data capturing is working; if the display shows“USB”on the
top line, it informs the user that AM8040 is connected to a
computer’s USB interface.
The “t=” at Line2 shows the measured temperature of the sensor.
The“IPRT” at the end of the Line2 tells the type of sensor of
sensor. AM8040 supports two types of sensors. “SPRT”
indicates a 25Ωor 100 Ωstandard platinum resistance
thermometers with α=0.003925. “IPRT” indicates a 100Ω
industrial platinum resistance thermometer with α=0.00385. The
“C” is displayed at end of Line2, it means the temperature is
measured is in Celsius degree.
Line3 shows the sensor resistance. Line 4 shows the temperature
in Fahrenheit degree.
AM8040 has three display pages of the measured data and these
pages can be scrolled to show different information. The above
sample is page1. The third page shows the resistance of the
sensor. The second page is the combination of page1 and page3.
User can scroll up and down these three pages by pressing or
key.
The menu key
MENU
and return/right shift key can be used for
sensor selections and parameter adjustments. The flash drive
recording start/stop key
REC
can be used for data saving to flash

AM8040 Precision Thermometer User’s Guide
Page 6
drive. The details are in 5 Instrument Calibration and Accuracy
Adjustment, and 6 Selection of Sensors and Adjustment of
Parameters.

AM8040 Precision Thermometer User’s Guide
Page 7
Instrument Calibration And Accuracy Adjustments

AM8040 Precision Thermometer User’s Guide
Page 8
1.Introduction
AM8040 precision thermometer is a desktop temperature
measurement and calibration device. It can work together with various
types of platinum resistance thermometer (PRT) sensors. The
measured temperature is calculated by the embedded microcontroller
following ITS-90 standard or CVD conversion method. This precision
thermometer has strong data acquisition capability. Users can acquire
and record data using an USB cable connecting to a PC, or using a
Flash drive by simply ‘plug-and-record’. Alternatively, it can work
with an optional wireless module to acquire and record data remotely
through wireless. With these flexible peripherals, temperature data can
be captured and saved in real time easily for various applications.
2.4. Main Application
Temperature calibrations or precision temperature
measurements.
Work with Standard Platinum Resistance Thermometers
(SPRTs), secondary platinum resistance thermometers
(Secondary PRTs) and precision industrial platinum resistance
thermometers (IPRTs).
Wireless/wire/flash real time temperature measurement and
acquisition.
2.5. Main Features
High accuracy, 0.008ºC at 0ºC.
High resolution，0.001ºC
Concurrent platinum sensor temperature measurement and data
capturing.
Concurrent display of sensor’s temperature in Celsius ºC, ºF,
resistance Ω.
2.7” large size OLED display.

AM8040 Precision Thermometer User’s Guide
Page 9
Touchpad for function control.
Flexible sensor parameter adjustment and setting.
USB interface to computer for real time temperature capturing
and data saving.
Wireless real time temperature data capturing with optional
external wireless module.
Real time temperature data capturing and saving to flash drive.