Measurement Computing TempScan/1100 - Manual (Page 20)

1-6 System Overview 899493 TempScan / MultiScan User's Manual
Digital I/O Interface & Alarms
Installation Category: For CE: Category 1.
Number of Digital Inputs: 8 bits, TTL level compatible.
Number of Digital Outputs: 32 bits, TTL level compatible. Can be programmed as alarms. Note that the
32 TTL outputs can be set or cleared via program control.
Alarm Conditions: May be detected by SRQ or by software query (SPoll or U command).
Alarm Update Rate: Alarms are updated whenever a channel assigned to an alarm is measured.
Connector: Female DB50 50-pin (32 Alarms, 8 digital inputs, 10 ground pins), mating connector supplied.
General
Installation Category: For CE: Category 2 for Line Voltage Input terminal. All other terminals are
Category 1.
Warm Up: 1 hour to rated accuracy.
Master/Slave Port: Female DB-25.
Chassis Ground Connection: Screw terminal.
Dimensions: 425 mm wide × 305 mm deep × 45 mm high (16.75” × 12” × 1.75”).
Weight: 3.62 kg. (8 lbs.).
Operating Environment: For standard: Indoor use, 0 to 50°C; 0 to 95% RH (non-condensing) to 35°C;
linearly derate 3% RH/°C from 35 to 50°C; For CE: Indoor use at altitudes below 2000 m,
0 to 40
°C; 0 to 80% RH up to 31°C decreasing linearly 4% RH/°C to 40°C.
Control Switches: Power Switch, IEEE 488 or RS-232, IEEE address, handshake, parity,
baud rate, calibration memory write enable/disable.
Front Panel Indicators: LED indicators for ALARM, TRIGGER and SCAN; for SEND and RECEIVE
(serial interface); for TALK, LISTEN and SRQ (for IEEE 488 interface); and for ERROR and
POWER.
Power: 105-125 or 210-250 VAC, 50/60 Hz; 20 VA maximum (internal slide switch).
CAUTION
Line Voltage: The protective conductor terminal on the AC line connector must
be connected to an external protective earthing system. Failure to make such a
connection will impair protection from shock.
WARNING
Service: This product contains no operator serviceable parts. Service must be
performed by qualified personnel. All terminals, including the AC line and
scanning cards, must be disconnected prior to opening the TempScan/1100 or
MultiScan/1200 case. Internal voltage potentials exist which could cause bodily
injury or death!
Fuse: 1/2A, 250 V, Slo Blo, 3AG (for 105-125V power line) or 1/4A, 250V, Slo Blo, 3AG (for 210-250V
power line).
CAUTION
Fuse Failure: Fuse failure indicates a possible problem within the device circuitry.
If a fuse blows, contact a qualified service representative. Replacement fuses are
to be installed by qualified service personnel with the unit disconnected from the
power source and with all other terminals disconnected. If the line voltage
selector is changed, then the fuse designated for that line voltage must be used.