{
 "manufacturer": "TSI",
 "manufacturer_slug": "tsi",
 "model": "PresSura 8631-CRM Clean Room Pressure Monitor",
 "model_slug": "pressura-8631-crm",
 "aliases": [
  "8631-CRM",
  "8631-CRM-BAC",
  "PresSura 8631-CRM"
 ],
 "equipment_type": "Room pressure monitor",
 "applies_to": "TSI PresSura Model 8631-CRM-BAC clean room pressure monitors with the BACnet board.",
 "summary": "The 8631-CRM watches clean room pressure with up to two pressure sensors and two supply flow inputs, and alarms on pressure and minimum supply flow. With the BACnet board it is a BACnet MS/TP device with a short fixed object list: pressures, flows, air changes per hour, alarm limits, a Status Index alarm code, the units selector and a mute command.",
 "bacnet_transport": [
  "BACnet MS/TP"
 ],
 "firmware": "1.0 (PICS)",
 "default_device_instance": 863001,
 "access_inferred": true,
 "notes": [
  "From the Model 8631-CRM-BAC BACnet MS/TP Object Set table (manual page 55).",
  "The table has no read/write column. Access is inferred from the PICS, which lists Present_Value as writable for Analog, Binary and Multi-state Values only.",
  "Units follow Units Value (MV 2): 1 = ft/min, 2 = m/s, 3 = in. H2O, 4 = Pa. Flow is cfm in English mode and l/s in metric mode."
 ],
 "source": {
  "title": "PresSura Clean Room Pressure Monitor/Controller with LON/BACnet, Models 8631-CRM/8631-CRM-BAC/8631-CRC/8631-CRC-BAC Operation and Service Manual",
  "doc_number": "P/N 1980489",
  "revision_date": "Revision F",
  "url": "https://tsi.com/getmedia/44b7bb16-9f83-4176-b2f6-a3610aa87c8c/1980489-8631CRx-Pressura-web?ext=.pdf"
 },
 "integration": {
  "summary": "Read room pressure, the supply flows and the Status Index (MI 1) for alarms. Mute Mode (MV 3) can silence or restore the local audible alarm.",
  "minimum_points": [
   {
    "ref": "AI 1",
    "name": "Room Pressure",
    "why": "Room differential pressure"
   },
   {
    "ref": "AI 2",
    "name": "Sec Sens Pressure",
    "why": "Second sensor pressure (e.g. airlock)"
   },
   {
    "ref": "AI 3",
    "name": "Supply#1 Flow Rate",
    "why": "Supply 1 airflow"
   },
   {
    "ref": "AI 5",
    "name": "Air Changes Per Hour",
    "why": "Calculated air changes per hour"
   },
   {
    "ref": "MI 1",
    "name": "Status Index",
    "why": "Alarm state; 1 = normal"
   }
  ],
  "enable": null,
  "heartbeat": null,
  "remote_sensors": null,
  "setup": [
   "BACnet MS/TP master at 9600, 19.2k, 38.4k or 76.8k baud (PICS).",
   "Set the MS/TP MAC with the MAC ADDRESS menu item (1-127); it only appears on units with the BACnet board.",
   "The device instance is 863000 plus the MAC address (MAC 1 gives 863001)."
  ],
  "gotchas": [
   "Pressure units change with Units Value (MV 2); in. H2O and Pa only apply when pressure transducers are used.",
   "The device instance changes if the MAC address is changed."
  ]
 },
 "points": [
  {
   "type": "AI",
   "instance": 1,
   "name": "Room Pressure",
   "description": "",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 2,
   "name": "Sec Sens Pressure",
   "description": "Second pressure sensor",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 3,
   "name": "Supply#1 Flow Rate",
   "description": "",
   "units": "cfm, l/s",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 4,
   "name": "Supply#2 Flow Rate",
   "description": "",
   "units": "cfm, l/s",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 5,
   "name": "Air Changes Per Hour",
   "description": "",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 1,
   "name": "MAC Address",
   "description": "Range 1 to 127",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 2,
   "name": "Low Alarm",
   "description": "Range -0.195 to +0.195 in. H2O",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 3,
   "name": "High Alarm",
   "description": "Range -0.195 to +0.195 in. H2O",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 4,
   "name": "Sec Low Alarm",
   "description": "Range -0.195 to 0.195 in. H2O",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 5,
   "name": "Sec High Alarm",
   "description": "Range -0.195 to 0.195 in. H2O",
   "units": "ft/min, m/s, in. H2O, Pa",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 6,
   "name": "Min Supply Alarm",
   "description": "Range 0 to 30,000 cfm",
   "units": "cfm, l/s",
   "access": "W",
   "states": ""
  },
  {
   "type": "MI",
   "instance": 1,
   "name": "Status Index",
   "description": "",
   "units": "",
   "access": "R",
   "states": "1=Normal, 2=Low Alarm, 3=High Alarm, 4=Min Supply Alarm, 5=Sec Sens Low Alarm, 6=Sec Sens High Alarm, 7=Data Error"
  },
  {
   "type": "MV",
   "instance": 2,
   "name": "Units Value",
   "description": "",
   "units": "",
   "access": "W",
   "states": "1=ft/min, 2=m/s, 3=\"H2O, 4=Pa"
  },
  {
   "type": "MV",
   "instance": 3,
   "name": "Mute Mode",
   "description": "",
   "units": "",
   "access": "W",
   "states": "1=Take out of mute mode, 2=Put into mute mode, 3=Normal mode"
  },
  {
   "type": "DEV",
   "instance": 863001,
   "name": "TSI8631-CRM",
   "description": "Device object; instance = 863000 + MAC address",
   "units": "",
   "access": "R",
   "states": ""
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/tsi/pressura-8631-crm",
 "note": "Provided as-is. Point availability varies by firmware and options; verify against the live device.",
 "disclaimer": "DISCLAIMER: reference only, provided AS IS with no warranty. May contain errors or be out of date. You must verify every point against the manufacturer's current documentation and the live device before use. easybacnet.com accepts no liability for its use and is not affiliated with the manufacturer. Terms: https://easybacnet.com/terms#content"
}