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CT76 – DMT Digital Multi-Variable Transmitter
The CT76 modular platform, combined with the diaphragm valve technology, provides a low dead-volume and compact design.
Compliant with ANSI/ISA 76.00.02 this platform provides the user with
– The most flexibilie system for design.
– Visible tube sets for flow tracing.
– Simple drag and drop Visio design tool.
- GC fast loop with atmospheric reference
- Surface mount ANSI/ISA-76 compliant*
- Metal-to-metal seals to atmosphere to prevent leakage
- Wide choice of materials for virtually all applications
- Replaceable seats for extended service life
- No dynamic o-rings, springs or lubricant in wetted flow path to eliminate sample contamination
- Very low internal volume 0.231 cc
- Stacked diaphragms for extended service life
- Pneumatic actuation (top actuation only)
- Pressures from vacuum (50 torr) to 500 psig (34 barg)
- Compact package (3˝ L × 2.6˝ H × 1.5″ W)
- Interlocking pins between valve body and manifold baseplate to ensure 100% correct reassembly
*CT-76 base adapter plate required for non-CT-76 manufactured surface mount systems
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| ACCURACY | ± 2% Full Scale for flow |
| REPEATABILITY | ± 1% for pressure and temperature |
| LEAK INTEGRITY | <0.25% Full scale range |
| FLOW RANGES LIQUID (H2O EQUIVALENT)3 | <1×10-5 alm-cc/sec of Helium {external} |
| FLOW RANGE GAS (AIR EQUIVALENT)1 | MAX: 500 ccm (13gpm) MIN: 5 ccm (0.08gpm) Higher and lower ranges available, consult factory |
| FLUID TYPES | Low viscosity (<59cP) liquid and gas |
| MAX COMMON MODE PRESSURE | 500 psig (34.5 bar) Higher operational pressures available, consult factory |
| DIFFERENTIAL PRESSURE | MAX: 15 psid TYPICAL: 5 psid |
| RANGE FLUID CONNECTIONS | ANSI / ISA-76 (Surface mount) 1/4” FNPT (inlet and outlet) industrial mount |
| TEMPERATURE RANGE | 0 – 70°C (32 – 158°F) |
| POWER | 30 mA@ 9.5 VDC± 10% (must be entity approved poer supply) |
| ELECTRICAL CONNECTIONS | M12 (5-pin male) DB9 (9-pin male) |
| DIGITAL BUS PROTOCOLS | CANbus (CT76 iCAN™ protocol)4 Modbus RTU (Serial RS485) |
| TURN DOWN RATION (FLOW RATE) | 50:1 (typically) (10:1 turndown at flow lower than 50 ccm) |
| ENVIRONMENTAL PROTECTION | IP65 |
| HAZARDOUS AREA AND ELECTRICAL COMPLIANCE | CSA Class 1, Divisions 1 & 2, Group A, B, C, D, T4 ATEX/IEC EX: Zones 0 & 1 EX ia IIC; T4 EN 61326-1: 1998 |
| WETTED MATERIAL | 316SS body, sensor & valve internals PEEK or 316SS flow restriction Viton or Kalrez o-rings |
| FLOW RESTRICTION OPTIONS | Multi-stack Flow Configuration Modules (FCM) Porous Flow Module (PFM) |
Support Materials
Flow Formulas