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XMT*-308 Series intellgence digital temperature control instrument
XMT*-308 series intelligent temperature controller, is single row 4-LED display. The controller can input kinds of signals which are used interchangeably, three-button operation, adopts ON/OFF control and PID control. It can select Fahrenheit and degree centigrade temperature display. It allows an easy parameter setting and convenient inputting, is used widely temperature automatic control systems of machinery、chemical、ceramics、light industrial、metallurgy、petrifaction and heat treatment and so on.
Ⅱ、Main Technical Indexs
1、Measurement deviation：±0.5%F·S±1B，Cold end compensating deviation≤±2℃
2、Input(can be selected)：CU50、PT100、K、E、J、T、S
3、Relay output contact capacity：AC220V 5A(resistance load)period 2～120s can be adjusted.
4、Driving solid relay signal output：driving electric current＞15m A voltage＞9V，period is 2S
6、Work environment：temperature 0～50.0℃, relative humidity≤85%RH, without corrode and strong electric radiation.
Ⅲ、Instrument panel and connection scheme（consult）
1、 Electrify after take into the power, sensor and control circuit according to the connection scheme, and then the instrument start testing itself for 1 second.
2、 Set the setting value
Press ▲or ▼key 3 second enter to the setting value states. press▲or ▼key to modify，for long time to press the key can accelerate. After modification, press SET to save and exit. if you don’t do this operation, it can be done itself.
3、 Interior Technical parameter setting（Technical parameter refer to the sheet）
(1) The first menu
Press SET key 3 second enter into the first menu, the window display parameter code then display parameter value. Press▲or ▼key to modofy，for long time to press the key can accelerate. .After modification, press SET key to save and enter into next Indexs setting. if you don’t do this operation, it can be done itself.
(2)The second menu Press SET & ▲ key to enter into the second menu, and the setting method is the same as the first menu.
4. Set by itself
First ,set the setting value, and enter the menu, set to , and the AT light turn on，the meter enter the condition setting itself，this time the meter adopt on/off control mode, after three times surge(first time, measure value and display by turns; second time, measure value and display by turns; second time , measure value and display by turns),the meter confirm new、、 and save it, the meter reset and(display、 by turns) enter control condition.
XMT□— 3 □ 8 □
1 2 3 4 5
1:External size and Installation hole(mm)
Empty: 160×80×90 152×76 A: 96×96×90 92×92
D: 72×72×90 68×68 E: 48×96×90 44×92
F: 96×48×90 92×44 G: 48×48×100 44×44
S: 80×160×90 76×152 B: 60×120×90 56×116
K: 48×24×80 44×21 FC: 77×35×76 71×29
L：35mm DIN guide rail installation C：80×120×35 wall set installation
2.Operation display method：‘3’ 3-key soft push-switch setting, single row digital display, have PID adjustment or ON/OFF control
3: An additional alarm： ‘0’indicates no alarm；‘1’upper limit touch alarm；‘2’ lower limit touch alarm
4：Input signal classification: ‘8’input signal can interchange free
5:Suffix： empty：relay output G：solid state relay output
A：mono-phase over zero trigger output
Ⅷ、Fault Analysis and Clearance
XMT*-308 adopts advanced production process, and has the strict test before leaving factory, it improve the reliability of the meter .The usual fault is caused by the wrong operation or parameter setting .If you find the fault couldn’t be cope with, please record it,and contact with the agent or us. Sheet 8-1 is the usual fault of XMT*-308 in the daily application：
Sheet 8-1 Common fault handling