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Trip Amplifiers - AHT Series

Technical data for our AHT trip amplifiers.

The input(s), contacts, supply and earth are fully isolated.

Whether the function is process input, pump control, rtd, slidewire etc take a look below.

If you are looking for a more specific model, take a look out our Datasheet Centre.

If you have any queries, do get in touch.

Email us for any queries

                                                                                                                                   Key

                                                                                               not available Not available                        Chargeable option  Chargeable option              Chargeable option including metal closure Chargeable option including metal closure
                                                                                               Standard AMELEC model   Standard AMELEC model      Non-chargeable option  Non-chargeable option       Dual Input unit Dual Input unit
Function





Model No.
Single
Input
Dual
Input
Single
Trip
DPCO
Dual
Trip
Each
SPCO
Supply
24Vdc
115/
230Vac
Latched
Relay
>1%
fixed
deadband
Variable
deadband
Upscale
on
open circuit
Limited
Upscale
drive
Downscale
on
open
circuit
RFI
Protection
LED
or LCD
Display
Field
Excitation
Notes

Download
datasheet
          L X V X X X K DI M
Thermocouple AHT611 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Non-chargeable option not available Types: B,E,J,K,N,T,R,S.
AHT612 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Non-chargeable option not available
Millivolt AHT615 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Non-chargeable option not available From 0-5mV to 0-400mV
AHT616 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Non-chargeable option not available
RTD AHT621 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model not available Chargeable option Chargeable option Non-chargeable option not available 2,3 or 4 wire connection
AHT622 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model not available Chargeable option Chargeable option Non-chargeable option  not available
RTD(Differential) AHT625 not available Standard AMELEC model not available  Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model not available not available Chargeable option Non-chargeable option not available Both inputs 2 wire
AHT626 not available Standard AMELEC model Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model not available not available Chargeable option Non-chargeable option not available
Process Input AHT631 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Chargeable option Chargeable option Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Current 400mV drop, volts> 400mV
AHT632 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Chargeable option Chargeable option Standard AMELEC model Chargeable option Non-chargeable option Chargeable option
Pump Control AHT635 Standard AMELEC model not available not available not available Standard AMELEC model not available Non-chargeable option Standard AMELEC model Chargeable option not available Standard AMELEC model Chargeable option Non-chargeable option  Chargeable option
Process (Diff) AHT639 not available Standard AMELEC model not available Standard AMELEC model Standard AMELEC model not available Non-chargeable option not available not available not available Standard AMELEC model Chargeable option Non-chargeable option not available Current 400mV drop, volts> 400mV
Slidewire AHT641 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model not available Chargeable option Chargeable option Non-chargeable option not available Conventional or conductive plastic
Slidewire AHT642 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model not available Chargeable option Chargeable option Non-chargeable option not available 2,3 or 4 wire connection
Slidewire (Diff) AHT645 not available Standard AMELEC model Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option Standard AMELEC model not available not available Chargeable option Non-chargeable option not available Both inputs 2 wire
AHT646 not available Standard AMELEC model not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available Standard AMELEC model not available not available Chargeable option Non-chargeable option not available
AC Current AHT651 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option not available not available Standard AMELEC model Chargeable option Non-chargeable option not available Internal VT/CT fitted for power measurement
AC Voltage AHT652 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option not available not available Standard AMELEC model Chargeable option Non-chargeable option not available
AC Frequency AHT681 Standard AMELEC model not available Standard AMELEC model not available Standard AMELEC model Chargeable option Non-chargeable option Chargeable option not available not available Standard AMELEC model Chargeable option Non-chargeable option not available Any regular waveform
AHT682 Standard AMELEC model not available not available Standard AMELEC model Standard AMELEC model Chargeable option Non-chargeable option not available not available not available Standard AMELEC model Chargeable option Non-chargeable option not available
Function

Model No.
Single
Input
Dual
Input
Single
Trip
DPCO
Dual
Trip
Each
SPCO
Supply
24Vdc
115/
230Vac
Latched
Relay
>1%
fixed
deadband
Variable
deadband
Upscale
on
open circuit
Limited
Upscale
drive
Downscale
on
open
circuit
RFI
Protection
LED
or LCD
Display
Field
Excitation
Notes
Key
                                                                     not available  Not available                             Chargeable option  Chargeable option                  Chargeable option including metal closure  Chargeable option including metal closure
                                                                     Standard AMELEC model   Standard AMELEC model          Non-chargeable option  Non-chargeable option            Dual Input unit Dual Input unit