Brooks Instrument MT3809G User Manual

Page 29

Installation and Operation Manual

X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
September, 2013

Models MT3809G & MT3810G

1-23

Section 1 Introduction

1-5-3

Microprocessor Transmitter with or without Inductive Alarms

This combined system provides both the sophistication of the
microprocessor along with the simplicity of one or two switch inductive
alarms. Specifications for the transmitter are as stated previously and
specifications for the front adjustable alarms are as described in the
section Inductive Alarm Switches.

Wiring diagrams
Refer to Figures 1-4, 1-6 and 1-8

For Division 1 explosion proof installations, the optional explosion proof

enclosure must be used. This enclosure does not use the auxiliary

terminal box, as shown on some of the installation diagrams. All
connections are made directly within the housing.
For Division 2 non-incendive installations, either the standard enclosure or
the explosion proof enclosure may be used.
For both Division 1 explosion proof and Division 2 non-incendive
installations, the barriers shown in the installation drawings are optional.
Wiring must be done in accordance with the applicable electrical codes,
i.e., NEC Chapter 5 and CEC Section 18, Canadian Electrical Code and
any local codes.

Transmitter accessories
General purpose and intrinsically safe HART compatible power supplies
are available in 120V and 240V.

Specifications - Traansmitters

PPPPPower Supply

ower Supply

22.8 to 30 Vdc: (2-wire current loop transmitter)

TTTTTrrrrransmitter

ansmitter

4-20 mA analog output with HART data. Update rate:
4 times per sec. Range: 3.8 to 22.0 mA.

TTTTTwo

wo Alarm Outputs

Alarm Outputs

Optically isolated outputs assignable to alarms.

(open collector)

• Max. off-state voltage: 30 Vdc
• Max. off-state current: 0,05 mA
• Max. on-state voltage: 1.2 Vdc
• Max. on-state current: 20 mA

One Pulse Output

Optically isolated. Scaleable to a variety of engineering unit systems (pulses per liter,

(open collector)

gallons, etc.).
• Range: 1 Hz to 1 kHz
• Max. off-state voltage: 30 Vdc
• Max. off-state current: 0.05 mA
• Max. on-state voltage: 1.2 Vdc
• Max. on-state current: 20 mA

TTTTTemper

emper

emperatur

atur

ature Specification

e Specification

See Table 1-4

Electrical Connector

M20 x 1,5 according to ISO (1/2" NPT, 3/4” NPT (F) or cable gland 8-12 mm optional)

Linearity

Less than 1% at max. current.

TTTTTemper

emper

emperatur

atur

ature In

e In

e Influence

fluence

Less than 0.04% per °C.

VVVVVoltage In

oltage In

oltage Influence

fluence

Less than 0.002% / Vdc.

Load Resistance In

Load Resistance Influence

fluence

± 0.1% full scale.