Honeywell SC Series - 12.6 Channel Menu Options

Honeywell Sensing and Control 57
SC 2000, SC2001, SC3004
Rev. G, 008-0608-00
12.5 Specications
TRANSDUCER INPUT
Transducer type amplified with voltage or current
output, (field selectable)
Excitation voltage
1
±15Vdc@40mAmax.
+28 Vdc @ 75 mA max.
+12 Vdc @ 40 mA max.
(field selectable)
Excitation overcurrent
protection
yes
Transducer full-scale
output
±1,±5,±10Vdc
4 mA to 20 mA (field selectable)
Amplifier gain selection automatic
Calibration type shunt, or 2-, 3- or 5-point known load
Differential Input Volt-
age
±55mV(max.)
A/D Converter 24-bit Sigma-Delta
Low-pass filter digital, 24-tap FIR
Resolution and frequen-
cy response
see “FREQ. RESPONSE Menu Item” on
page 58
INSTRUMENT-ONLY ACCURACY
(Sense wires used; frequency response setting <16 Hz; Linearity, repeatability,
and hysteresis)
Known-load calibration ±0.01%FS
AUXILLARY INPUTS
Quantity 2
Type momentary contact closure
Response time < 5 ms
Field-selectable func-
tions
tare on, tare off, peak/valley clear,
peak/valley hold, track hold
ANALOG OUTPUTS
Output voltage range 5,±5,10or±10Vdc(eldselect-
able)
Output current range
(optional current output
channels)
4 mA to 20 mA
Source any channel’s track, peak, or valley
value
Isolation 500 V
Resolution 13 bits
Frequency response same as input when driven by the
same channel’s tracking data
1
Total excitation current of all channels must not exceed 120 mA
for Models SC2000 or SC2001 and 310 mA for Model SC3004.
12.6 Channel Menu
Each High-Level Input channel is configured and calibrated via
its channel menu. Detailed instructions on operating the instru-
ment in the SETUP Menu mode can be found in “SETUP Menu
mode” on page 7. A diagram of all menus is located in “Setup
Menu Reference” on page 77.
12.6.1 OPERATION Sub-Menu
This menu controls the operation of this channel when the instru-
ment is in the RUN mode.
AUTO-ZERO Menu Item
This enables or disables the channel’s automatic zeroing func-
tion. The auto-zero function can remove the effect of slight tem-
perature shifts in the transducer’s output. The two options for this
menu item are “ON” and “OFF”.
When enabled, the channel will reset its tracking value to zero
when the tracking value has never been more positive than +10
or more negative than -10 display counts for any 10 second
period.
For example, assume that the DISPLAY.DECPT menu item is set to
000.00 (two decimal points). If the tracking value never leaves
the range of -000.10 to +000.10 for any 10 second period, then
tracking value will reset to 000.00 automatically.
NOTICE
To compensate for the transducer’s initial warm-up shift, the
auto-zero function operates every 2 seconds during the first
60 seconds of RUN mode operation.