38
User Interface
Single 4-digit LED Display
Keypad: 3 keys
Programming Port: For automatic setup, calibration and testing
Communication Port: Connection to PC for supervisory control
Control Mode
Output 1: Reverse (heating) or direct (cooling) action
Output 2: PID cooling control, cooling P band 50~300% of PB, dead band -36.0 ~ 36.0 % of PB
ON-OFF: 0.1 - 90.0 (°F) hysteresis control (P band = 0)
P or PD: 0 - 100.0 % offset adjustment
PID: Fuzzy logic modified
Proportional band 0.1 ~ 900.0°F.
Integral time 0 - 1000 seconds
Derivative time 0 - 360.0 seconds
Cycle Time: 0.1 - 90.0 seconds
Manual Control: Heat (MV1) and Cool (MV2)
Auto-tuning: Cold start and warm start
Failure Mode: Auto-transfer to manual mode while sensor break or A-D converter damage
Ramping Control: 0 - 900.0°F/minute or 0 - 900.0°F/hour ramp rate
Digital Filter
Function: First order
Time Constant: 0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60 seconds programmable
Approval Standards
Safety: UL61010C-1, EN61010-1 (IEC1010-1)
Environmental & Physical
Operating Temperature : -10 °
to 50 °
Storage Temperature : -40 °
to 60 °
Humidity : 0 to 90 % RH ( non-condensing )
Altitude: 2000m maximum
Pollution: Degree 2
Insulation Resistance : 20 Mohms min. ( at 500 VDC )
Dielectric Strength : 2000 VAC, 50/60 Hz for 1 minute
Vibration Resistance : 10 - 55 Hz, 10 m/s for 2 hours
Shock Resistance : 200 m/s ( 20 g )
Moldings : Flame retardant polycarbonate
Dimensions :
C
C
C
C
2
2
Protective Class:
IP65 for panel with additional option
IP50 for panel without additional option
IP20 for terminals and housing with protective cover.
All indoor use.
EMC: CE En61326
ETR-4100-----96mm(W) X 96mm(H) X 65mm(D),
53 mm depth behind panel
ETR-8100-----48mm(W) X 96mm(H) X 80mm(D),
65 mm depth behind panel
ETR-9100-----48mm(W) X 48mm(H) X 116mm(D),
105 mm depth behind panel
Weight : ETR-4100----- 250 grams
ETR-8100----- 210 grams
ETR-9100----- 150 grams
