ES-1870 Rev.7
18HZ
Rack-mounted DCS Signal Conditioners 18-RACK
FREQUENCY TRANSDUCER
Functions & Features
• Providing two DC output signals in proportion to deviation (±5 Hz) from center frequency (50 Hz or 60 Hz)
• DC output containing little ripple is ideal for computer input
Typical Applications
• Centralized monitoring and control of power management system in manufacturing facility or building
• Measuring frequency for UPS
MODEL: 18HZ–[1][2]66–R
ORDERING INFORMATION
• Code number: 18HZ-[1][2]66-R
Specify a code from below for each of [1] and [2].
(e.g. 18HZ-1166-R)
[1] FREQUENCY
1
: 45 – 55 Hz
2
: 55 – 65 Hz
3
: 45 – 65 Hz
[2] INPUT
1
: 110 V AC
2
: 220 V AC
OUTPUT 1
Voltage
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
OUTPUT 2
Voltage
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
GENERAL SPECIFICATIONS
Construction
: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided
Connection
Input
: M3.5 screw terminals (torque 0.8 N·m)
Output 1
: Connector
Output 2
: M3.5 screw terminals (torque 0.8 N·m)
and connector
Power input
: Supplied from connector
Screw terminal
: Nickel-plated steel
Isolation
: Input to output 1 to output 2 to power
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
Operational range
: 85 – 120 % of rating
Overload capacity
: 150 % of rating for 10 sec., 120 % continuous
Input burden
: Approx. 1 VA
OUTPUT SPECIFICATIONS
INSTALLATION
Current consumption
: Approx. 60 mA
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Standard Rack 18BXx or 18KBXx
Weight
: 150 g (0.33 lb)
PERFORMANCE in percentage of span
Accuracy
: ±1.0 %
Temp. coefficient
: ±0.1 %/°C (±0.06 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Ripple
: 0.5 %p-p max. (100/120 Hz)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute
(input to output 1 or output 2 or power)
500 V AC @ 1 minute
(output 1 to output 2 to power)
2000 V AC @1 minute
(input or output or power to ground)
CONNECTION DIAGRAM
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS