Specifications - Honeywell DirectLine DL421 User Manual

1.4 Specifications

Displayed pH
Displayed Temperature Range
Process Temperature
Sensor Survivable Temperature Range
Durafet II & III
Meredian II
Electronics Module Ambient Temperature
Output Type
Output Scale
Output Calibration
Mating Connector Rating
Output (Loop)
User Termination
Cable Lengths
Sensor:
Power
Local Display and Buttons
Engineering Units
Calibration Options
Solution Temperature Compensation
Diagnostics
Case
Approvals
Remote Mounting
Dimensions
Weight
2/04
0-14 pH
–10 °C to +110 °C (14 °F to 230 °F)
–10 °C to +110 °C (14 °F to 230 °F)
–10 °C to +130 °C (14 °F to 266 °F)
0 °C to 110 °C (32 °F to 230 °F)
–20 °C to +85 °C (–4 °F to +185 °F)
4-20 mA (2-wire loop powered)
0-14 pH
4-20 mA
Submersible to 6.1m (20')
6m (19.7') cordset or Shielded twisted pair with field
wiring connector
Tinned leads
Durafet II & Durafet III: 6.1m (20') or 15.24m (50')
Meredian II: 3.65m (12') or 6.1m (20')
HPW7000: .45m (1.5') or 10.97m (36')
16-42 Vdc, 23mA max
Maximum load resistance: 250 ohms at 16 Vdc
LCD 4-digit, 7-segment
pH
degrees F
degrees C
1 point Sample or 2 point Sample
Auto Buffer Recognition
Selections:
Sensor and electronics
Weatherproof, corrosion-resistant plastic housing, NEMA4X
CE Mark for Industrial Applications
UL – General Purpose for Process Control
CSA – General Purpose
FM – CLI, DIV1, Groups A, B, C & D and CLI, Zone 0
AEx ia IIC (IS)
FM – CLI, DIV2, Groups A, B, C & D and CLI, Zone 2,
Groups IIC (N.I. Field Wiring)
Pipe, Wall, or DIN Rail
H 123 mm (4.84") x W 48 mm (1.89") x D 46 mm (1.81")
Approximately 142 g (5.0 oz.)
DirectLine® DL421 Sensor Module User Manual
600 ohms at 24 Vdc
1400 ohms at 42 Vdc
Selections: US, NIST, EURO
0.00pH/10°C
–0.16pH/10°C
–0.32pH/10°C
Introduction
3