User Manual

42 06-DPP-UM-00147 02/12
CONFIGURE I/O MODULE 1
CFG MOD1 -- Congure I/O Module 1 (Choice)
YES
NO
This prompt allows access to the setup parameters associated with installation of the optional ISO-MOD
interface modules. If NO is selected, the unit will skip ahead to CFG MOD2. If YES is selected, congura-
tion and calibration of the module installed in the rst position is accessible.
MODULE TYPE
MOD TYPE-- Module Type (Choice)
NONE No Module Installed
4-20MA 4-20mA Analog Output
RATE Rate Pulse Output
RELAY Relay Output
Select the type of module installed from the list.
ISO MOD 420 mA
ISO-MOD -- 4-20 mA
FLOW 4MA
FLOW 20MA
CAL 4MA
CAL 20MA
4-20 TEST
Congured via jumper selections for either a passive (current sinking) or active (current sourcing) trans-
mission mode (see Part 3 for details), the 4-20 mA Output Module interfaces with virtually all recording
and logging systems by transmitting an analog current signal that is proportional to system ow rate.
Independent 4 mA and 20 mA span settings are established in memory using the ow measuring range
entries. These entries can be set anywhere in the measuring range of the instrument. Output resolution
of the module is 12-bits (4096) discrete points) and the module can drive up to 800 Ohms of lead with its
internal 24 V isolated power source.
420 MA SPAN
The FLOW 4MA and FLOW 20MA entries are used to set the span of the 4-20 mA analog output. These
entries are volumetric rate units that are equal to the volumetric units congured as Engineering Rate
Units and Engineering Units Rate Interval.
For example, to span the 4-20 mA output from 0 GPM to +100 GPM, with 12 mA being 50 GPM, set the
FLOW 4MA and FLOW 20MA values as follows:
FLOW 4MA = 0.0
FLOW 20MA = 100.0