
Transmitter M400 121
© 02 / 2010 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400
Printed in Switzerland 52 121 378
16.2 Electrical specications
Power requirements
100 to 240 V AC or 20 to 30 V DC, 10 VA,
AWG 14 < 2.5 mm
2
Frequency 50 to 60 Hz
Analog output signals
Four 0 / 4 to 20 mA outputs, galvanically isolated
from input and from earth / ground
Measurement Error through
analog outputs
< ± 0.05 mA over 1 to 22 mA range,
< ± 0.1 mA over 0 to 1 mA range
Analog output conguration Linear, Bi-Linear, Logarithmic, Autoranging
Load max. 500 Ω
Connection terminals Detachable screw terminals
Digital communication USB port, Type B connector
PID process controller Pulse length, pulse frequency or analog control
Cycle time Ca. 1 second
Connection terminals Detachable screw terminals
Digital Input
2 with swtiching limits 0.00 VDC to 1.00 VDC for
low level and 2.30 VDC to 30.00 VDC for high level
Mains power fuse 1.0 A slow blow type FC
Relays
2-SPDT mechanical 250 VAC, 30 VDC,3 Amps
2-SPST mechanical rated at 250 VAC, 3 Amps
2-Reed 250 VAC or DC, 0.5 A
Alarm Relay delay 0–999 s
Keypad 5 tactile feedback keys
Display four-line
Max. cable length ISM 80 m
h
NOTE: This is a 4-wire-product with an active 4–20 mA analog output.
Please do not supply to Pin1–Pin6 of TB2.
16.3 Mechanical specications
Dimensions (housing – H x W x D)* 144 x 144 x 116 mm
Front bezel – H x W 150 x 150 mm
Max. D – panel mounted 87 mm (excludes plug-in connectors)
Weight 0.95 kg (2 lb)
Material ABS / polycarbonate
Ingress rating IP 65 (when back cover is attached)
* H = Height, W = Width, D = Depth
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