
MODEL: CALISTO T1
The Doble Calisto™ T1 encapsulates the functionality of the present doblePRIME™ modules (Bushings, Partial Discharge, A/D) in a single configurable package in a cost-effective manner. It provides the same clear user interface through a built-in server and manages user access, alert setting, alert management and data visualization — bringing together data from Doble and third-party devices. Standard communication protocols including IEC 61850 allow data to be moved between Calisto T1 and other applications such as SCADA
FEATURES
- PD Guard – The doblePRIME PD-Guard™ monitors partial discharge (PD) in equipment such as transformers, rotating machines, cables and switchgear and provides local alarms and will communicate data and notifications across standard interface channels and through to networked supervisory systems. It analyses PD and EMI signals in the HF, VHF and lower UHF ranges.
- IDD –
The doblePRIME IDD™ bushing monitor detects deterioration in bushings, finding abnormalities in the insulation and issuing actionable alerts and provides leakage current and phase analysis for up to 6 bushings, measuring parameters for each bushing individually, and using a voltage reference where available.
The doblePRIME IDD™ bushing monitor detects deterioration in bushings, finding abnormalities in the insulation and issuing actionable alerts and provides leakage current and phase analysis for up to 6 bushings, measuring parameters for each bushing individually, and using a voltage reference where available.
- IO – The doblePRIME iO is a data recorder that accepts current, voltage, temperature and relay inputs to your doblePRIME system and integrates and displays data from multiple sensors and sources, including load or operational data, tap position indicators and inputs from other vendor devices.The Calisto T1 can build from a single component to a comprehensive transformer monitor covering partial discharge (PD), bushings, operational data, and linking to Dissolved Gas Analysis (DGA) monitors.

BENEFITS
- Simplify field configuration of condition monitoring installations
- Configurable muli-functional monitoring in a single, small enclosure
- Works within your firewall and meets your cybersecurity regulations
- Visualize and overlay data from multiple assets through a single, intuitive UI
- Comprehensive alert management
- Set three levels of alert on each data channel
- Alert default value available and user-configurable depending on application
- Built-in audit trail of alert generation and acknowledgement for post-event investigation
- Simplified upgrade path
- Calisto T1 allows for field upgrade of hardware so that you can start small and grow
- For example, start with IDD bushing monitoring and add main tank PD
- Intuitive user interface
- Configurable muli-functional monitoring in a single, small enclosure
- Works within your firewall and meets your cybersecurity regulations
- Visualize and overlay data from multiple assets through a single, intuitive UI
- Set three levels of alert on each data channel
- Alert default value available and user-configurable depending on application
- Built-in audit trail of alert generation and acknowledgement for post-event investigation
- For example, start with IDD bushing monitoring and add main tank PD
TECHNICAL SPECIFICATIONS
T1 BASE MODULE
PD MONITOR
CPU, MEMORY AND BUSES | |
Host CPU | ARMv8 1.2GHz |
Memory | 1 GB RAM, 4GB Flash |
STORAGE | 32GB eMMC Flash for application and data storage |
ENVIRONMENTAL | |
Humidity | 0-95% non-condensing |
TEMPERATURE* | |
Operating temperature | -20°C to +50°C |
Extended temperature | -40°C to +60°C |
Storage temperature | -20°C to +70°C |
DATA ACQUISITION | |
TUNERS (BOTH) | |
Inputs | 4 or 8 channels, multiplexed |
Connector | BNC |
Input impedance | 50 Ω |
Maximum Input | +10 dBm for reading (+25 dBm with optional attenuation) |
Dynamic range | 60 dB |
Detection types | Peak, quasi-peak and average detector |
Sweep processing | Continuous, Average, Max Hold and differentia |
POWER SUPPLY | |
External supply | 24 V DC @ 1 A |
An optional power adapter can be supplied to suit global mains voltage | |
IO TECHNICAL SPECIFICATIONS | |
The iO Module has four slots which can accommodate any combination of the following options: | |
8A1 | 8 channel analog input, 4-20mA |
8T1 | 8 channel temperature input, PT 100 |
8D1 | 8 channel digital input |
8D0 | 8 channel digital output |
Construction | Anodized aluminum |
RFI TUNER 1 | |
Bandwidth | 50 kHz to 50 MHz |
Resolution Bandwidth | 9 kHz / 120 kHz |
Noise floor | Approximately -90 dBm for peak detect or -100 dBm for average detect (RBW 9 kHz) |
RFI TUNER 2 | |
Bandwidth | 50 MHz to 1000 MHz |
Accuracy | ± 100 kHz |
Resolution bandwidth | 120 kHz / 1 MHz / 6 MHz |
Noise floor | Approximately -80 dBm for peak detect or -90 |
AC SYNCHRONISATION: | Wired sync to external AC source |
MEASUREMENT MODES | |
RF modes | SpectrumOscilloscope (Time resolved)Level meter |
Results output | IPwr (Integrated Power), PAPR (Peak-Average Power Ratio), PRPD (Phase Resolved PD), QIEC (IEC 60270 compliant), Quadratic rate (QR) |