User Manual

54 Analog input settings
Section 3: Electrical installation Daniel 3814 Liquid Ultrasonic Meter Installation Manual
March 2015 3-9000-760 Rev E
3.6.2 Analog input settings
The 960-24™ MSTS has the capability to sample analog temperature (Analog Input 1) and
pressure (Analog Input 2) with 4-20 mA signals. These analog input signals are configured to
sink. The two independent analog input circuits are configured for conventional 4-20 mA
service. Also, 24VDC isolated power supply connection is provided for an external power source.
Refer to the Field wiring diagram DMC-004936 in Appendix A.
3.6.3 Analog output settings
The 960-24™ MSTS provides two 4-20 mA analog output signals that are software configurable
for either sink or source current (see Appendix A Daniel drawing
DMC-004936).
Full HART® functionality is provided so that any commercially available HART® transmitter
which meets the specifications of the HART® Communications Foundation can be connected to
the Daniel® Liquid Ultrasonic Flow Meter.
Analog Output 2 (AO2) is user-configurable as a conventional 4-20 mA output.
3.6.4 Digital Input
The 960-24™ MSTS provides one digital input that can be used as a general purpose input or
used for synchronizing calibration (for flow calibration gating - contact closure). The meter
records the volume seen between switch closures. The polarity of the input is configured as
normal or inverted polarity.
• polarity is determined by the IsDI1ForCalActiveLow and the gating edge is determined by
the IsDI1ForCalStateGated (calibrate edge gated or calibrate state gated)
• calibration is started via an inactive>active state change and stopped via an
Active>inactive state change.
The digital input must be configured via the Daniel MeterLink
Tools|Edit/Compare Configuration
screen.
3.6.5 DHCP server switch settings
The meter can be configured to act as a DHCP server. The DHCP server is enabled/disabled via
CPU Module DHCP switch as follows:
Table 3-6 DHCP server switch settings
CPU Module switch DHCP server disabled DHCP server enabled
DHCP OFF ON