Anyload A1A User manual

Anyload Transducer Co. Ltd
Website: www.anyload.com
Email: [e-mail]
Fax: [phone]
No th Ame ica Toll F ee: 1-855-ANYLOAD (269 5623)
A1A
Load Cell Amplifier
Product Manual (V1611)

1 | ANYLOAD A1A Amplifie P oduct Manual (V1611)
TABLE OF CONTENT
1. Int oduction 2
2. Installation 2
3. Connection Diag am 2
4. Specifications 3
5. Calib ation 3
•Ze o Calib ation
•Span Calib ation
6. Ope ation 4
7. T oubleshooting 4

2 | ANYLOAD A1A Amplifie P oduct Manual (V1611)
1. Introduction
Thank you fo choosing Anyload A1A load cell amplifie . A1A st ain gage
amplifie p ovides load cell and t ansduce signal conditioning. It is designed fo
conve ting mV signal f om load cell output into a 4~20mA o 0~10V signal. The
A1A st ain gage amplifie is DC powe ed and can d ive up to 2 x 350Ω load cells
o 4 X 700Ω load cells. It can be connected di ectly to 1 load cell o to seve al
load cells th ough a junction box. The amplifie is housed in an aluminum
casting enclosu e and has 2 th ough holes fo easy installation. This manual
p ovides the installation, ope ation and calib ation p ocedu es of the p oduct.
2. Installation
Only simple tools like small size slotted sc ew d ive and Philips sc ewd ive a e
equi ed fo connecting cables du ing installation, adjusting the unit du ing
calib ation and installation of enclosu e cove .
3. Connection Diagram
Fig1.Connection Diag am
From Amplifier to 24V DC Power and 0~10V/4~20mA output signal:
Vo: Output Voltage Signal 0~10V
Io: Output Cu ent Signal 4~20mA
Vs: Input 24V DC Powe
GND: G ound

3 | ANYLOAD A1A Amplifie P oduct Manual (V1611)
From Load Cell to Amplifier:
+S:+Output mV Signal
-S:-Output mV Signal
+E:+Excitation
-E: -Excitation
4. pecifications
Powe Supply: 24V DC }10%,<3W Maximum Input Voltage:30V DC
Input Signal: 0~30mV Maximum Output Cu ent: 40mA
Output Signal: 0~10V/4~20mA Maximum Output Voltage: 15V
Ope ating Tempe atu e: -10°C~40°C
Ope ating Humidity : ≤90%R.H.
5. Calibration
The calib ation of A1A consists of Ze o Calib ation and Span Calib ation:
5.1 Ze o Calib ation
Step1.Remove all load f om the scale platfo m. If the scale equi e hooks o
chains (ta e weight), place the hooks o chains into the scale fo ze o
calib ation.
Step2.Adjust ZERO va iable esisto to an output of 0V o 4mA.
(Note: Tare weight shall not exceed 30% of full load)
5.2 Span Calib ation
Step1.Place full load into the scale.
Step2. Adjust SPAN va iable esisto to an output of 10V o 20mA.
(Note: It’s ecommended to epeat adjustment in Step 2 of Section 5.2 above
th ee times.)
6. Operation
6.1 Except du ing calib ation, always keep the enclosu e cove on and ensu e
the seal is p ope ly fitted when installing the cove .
6.2 Always keep the amplifie clean f om di t to avoid affecting the values of
the ZERO and SPAN va iable esisto s.

4 | ANYLOAD A1A Amplifie P oduct Manual (V1611)
6.3 Fo stable amplifie signal output, always use safe and eliable DC powe
supply.
6.4 When output eading changes, e-calib ate the amplifie acco ding
to Section 5, Calib ation.
7. Troubleshooting
7.1 No output f om the amplifie : Check all wi e connections and the DC powe
supply.
7.2 Output signal is abno mal: Re-calib ate acco ding to Section 5, Calib ation.
7.3 P oblem cannot be esolved: Contact supplie